Jacquard machine



D 31, 1935 J. T. HARDAKER 2,02%277 JACQUARD MACHINE Filed May 2, 1934 2sheets-Snam 1 J. T. HARDAKER JACQUARD MACHINE Dec. 3l, i935.

Filed May 2', 1934 2 Sheets-Sheet 2 l il. fO u/ cu i @wf Patented Dec.3l, 1935 UNITED STATES PATENT OFFICE Application May 2, 1934, Serial No.'723,531 In Great Britain May 4, 1933 7 Claims.

In the Weaving of ne and delicate fabrics, such as of silk, articialsilk, ne cotton or the like, by jacquard machines having the usual andordinary harnesses or cords, great inconvenience 5 and many defectiveresults are encountered by the curling and twisting actions of the saidcords causing the warp threads to encircle and become entangled.vviththe mails and their supports or attachments, whether same are of thewell known l metal type or of the brous cord formation. The

said curling and twisting actions are most frequently met with when achange in the hygroscopic conditions of the atmosphere occurs, such forexample as when the atmosphere changes 5 from being comparatively dry toa condition in which there is sumcient moisture therein for the harnesscords to absorb same, as is Well understood.

My present invention consists in the production 20 and application ofmeans whereby said curling,

twisting and other entangling actions of the harness cords are entirelyprevented from imparting any detrimental motion or movement to the mailsor members through which the warp threads pass,

25 that will interfere with their effective operations.

The accompanying sheets of drawings are illustrative of my invention andare hereinafter referred to, in order that same may be readilyunderstoodz- 30 Fig. 1 is a front View showing a group of harness cordsin the respective position which each one of them occupies in the frontrow of a comberboard, and each with its attachments to the mail which itoperates and to the lingo or weight which 35 eiects its descendingmovement.

Fig. 2. is a side view of a like group of said harness cords in theirrespective positions from the one in iront to those which aresuccessively adjoining and in staggered positions behind. The

40 mail and lingo or weight on each harness cord are shown in therespective positions that they occupy according to my invention.

Fig. 3 is a sectional plan of a group of lingos or weights occupyingtheir respective and relative 45 positions as they are suspended fromtheir harness cords when these latter are being held and guided in theirseveral vertical paths by the comberboard. The lingos or weights shownby this gure are of the cross sectional shape here- 50 inafterdescribed.

Figs. 4 and 5 are similar views to Fig. 3 but show modified forms orshapes of the lingos or weights hereinafter explained.

Figs. 6 and 7 are similar views to Figs. 1 and 2 55 respectively but aredrawn to a reduced scale so that a portion of the comberboard may, ineach case, be shown in its relative position to the harness cords andthe members attached thereto and operated by said cords.

In carrying my invention into eect I make use ofmetal mails a which arepreferably xed upon Wire connections b, b1 that reach from theirattachnients to the harness cords c in proximity to the under surface oftheir guiding member d (styled the comberboard) down to their attach- 1oments to the lingos or harness weights f, although my said inventionmight be less effectively made use of in connection with the ordinaryharness cords c wherein the said cords reach to the metal mails a or inwhich the said mails a have additional cords instead of the metal wiresb, b1, to connect them to the lingos or Weights j in a manner which iscommon and well known.

To the lower end of each wire member b I couple its respective lingo f,preferably by an elongated metal link g taking through the loop a2 onthe end of the member b, as well as taking through the opening g1 in theend of the lingo f, since the said form of link engages with the loop a2in a better manner for controlling and prevent- 25 ing any swivellingactions being transmitted thereto than would a link of an annular orlike shape. Further, by the link g taking through the opening g1 in theupper end of the lingo f, the Weight of said lingo f, acting through thelink g and member b, will more effectively retain the mail a with itsopening in axial alignment with the path through which the thread ofwarp h (Which it has to operate) extends. Thus when the opening for itsthread of weft h is retained with its axis in said alignment, aperfectly free and clear course for the passage of the warp through sameis secured.

Each 'of the lingos f I now form, according to my invention, of theflattened (or other shape 40 than cylindrical in cross section) as isshown by Figs. 3, 4, and 5; thus each lingo is prevented from movingmore out of its path than into a position where it can touch or come incontact with one or other of its neighbouring lingos. That is to say,taking the Jtwo lingos 2 and 3 of Fig. 3, these, if slightly oscillatedabout their vertical axes (as is shown in broken lines), would come intocontact with each other on the line of contact fl, or if oscillating inthe opposite direction, then the line of contact would be Where thelingo 5 was contacted With by the lingo 3, or Where the lingo 5 mightcontact with the lingo 6 or 'I as will be understood.

It will be observed that the staggered arrangement of the lingos, whichis common and well known, facilitates the employment of the ilattenedform of lingo which, by its flattening, is caused to have its breadthextended, while its thickness is shortened or diminished. Thus in allcases the lingo is retained with its side surfaces in positions that donot -detrimentally permit the opening through the mail a being twistedto interfere with the free passage of the warp thread It, as is abovestated.

As an alternative to the straight attened formation of lingo shown byFig. 3, the body of the lingo may be slightly grooved or channelled, asis shown by Fig. 4, in which case the edges of the lingo are broadenedso that less oscillation on the part of each individual lingo will bediminished by the space between them being reduced in width. Or againfor similar or other reasons the formation of the body of the lingo maybe of a double convex form in cross section, as is shown by Fig. 5. Ineach case the object of the formation is to enable the lingo, so shaped,to prevent its neighbouring lingos from too great an oscillation.

At the ends of the series or group of lingos,

guiding bars lc are used so that those lingos adjoining said guidingbars will be prevented by same from twisting, on account of havingneighbouring lingos on one side of them. Again, longitudinal bars k1 maybe mounted in the usual framework adjacent the lingos, as is shown byFigs. 3, 6, and '7.

In cases where groupsv of lingos f are made use of, and are arranged tooccupy positions in the loom with spaces between them, (such as when afabric is bein-g produced where only sectional parts of the warp have tobe operated by `the jacquard while all the other intervening warpthreads are operated by the ordinary shedding or warp operatingdevices), then similar cross bars 1c and longitudinal bars k1 are usedand respectively mounted adjacent the two end rows of lingos and thefront and back rows, as is shown by Fig. 3.

Such being the nature of my said invention, what I claim is:-

l. In jacquard machines, mails or members for receiving and operatingwarp threads, wire or metal extensions from said mails'coupled to theharness cords which are conducted through guiding hol-es made instaggered positions through the comberboard and secured to the verticalhooks in the jacquard machz'ne, other extensions from said mails tocouple them to their operating lingos or weights, each of said lingoshaving a length greater thanwthickness so that rotary or oscillatorymotion about its axis is lim'ted or prevented by its contacting with itsneighbouring lingo or lingos for the purpose specified.

2. In jacquard machines, metal mails or members for receiving andoperating warp threads, wire or metal extensions from said mails coupledto the harness cords which are conducted by guiding holes made in.staggered positions through the comberboard and secured to the verticalhooks in the jacquard machine, other metal extensions from said mails tocouple them to their operating lingos or weights, each of sai-d lingoshaving a length greater than its thick--` ness so that rotary oroscillatory motion about its axis is limited or prevented by itscontacting with its neighbouring lingo or lingos, for the purposespecified.

3. In jacquard machines, metal mails or members for receiving andoperating warp threads, wire or metal extensions from said mails coupledto the harness cords which are conducted by guiding holes made instaggered positions through the comberbcard and secured to the verticalhooks in the jacquard machine, other metal extensions from sai-d mailsto metal links Secured to the lingos or weights, each of said lingoshaving a length greater than its thickness so that rotary or oscillatorymotion about its axis is limited or prevented by its contacting with itsneighbouring lingo or lingos for the purpose specified.

i. In jacquard machines, metal mails or members for receiving andoperating warp threads, wire or metal extensions from said mails coupledto the harness cords which are conducted by guiding holes made instaggered positions through the comberboard and secured to the verticalhooks in the jacquard machine, other metal extensions treni. said mailsto mete-.1 links oi elongated .shape secured. to the lingos or Weights,each of said lingos having a length greater than its thickness so thatrotary or oscillatory motion about its agis is limited or prevented byits contestine with its neighbouring lingoy or lingos for the purposespecified.

5. In jacquard machines, metal mails or members for receiving andoperating warp threads, Wire 0r vmetal extensions from said mailscoupled to the harness cords which are conducted by guiding holesmade instaggered positions through the somber-board and secured to the verticalhooks in the jacquard machine, other metal extensions from said mailslto metal links. of elongated shape secured to the lingos or weights',said lingos or vveiel-its,v each being of flattened or other shape whichmakes it of a width greater than itsN thickness, so that by its saidshape rotary or oscillatory motion about its axis is limited orprevented by its contacting with its neighbouring lingo or lingos forthe purpose Specified.

6. In jacquard` machines, metal mails or members for receiving andoperating warp threads, wire or metal extensions imm said mails coupledto the harness cords which are Conducted by guiding holes mede instaggered positions through the comberboard and secured to` the verticalhooks in the jacquard machine, other metal extensions from seid I nalstometal of. elongated shape seeured to the lingos or weights, said lingosor weights, each having a groove or furrow on one orl bothY of its sidesurfaces with. its outer edges broader or thicker than its longitudinalcentral part between said edges, so that by its said shape rotary oroscillatory motion about its axis is limited or prevented by itscontacting with its neighbouring lingo or lingos for the purposespecied.

7. In jacquard machines,Y metal mails or members for receiving andoperating warp threads, wire or metal extensions from said mails coupledto the harness cords which are conducted by guiding holes made instaggered positions through the: comberboard andA secured to thevertical hooks in the jacquard mach-ine, other metal extensions fromsaid mails to metal links of elongated shape secured to the lingos orweights, said lingos, each. being of double convex shape in cross;section, so that by its said shape rotary or oscillatory motion aboutits axis is limited or prevented by its contacting with its neighbouringlingo or lingos. for the purpose specied.

JOHN THOMAS HARDAKER.

